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大连理工大学学报 2010
WaverotorsusedforexpansionrefrigerationtechnologyDOI: 10.7511/dllgxb201006009, PP. 888-895 Keywords: pressureexchangingrefrigerator,expansionrefrigeration,waverotor Abstract: Waverotorisanunsteadyflowdeviceinwhosepassagespressuredstreamsdirectlycontactandexchangetheenergyduetothemovementofpressurewaves.Anovelrefrigerationapparatusnamedpressureexchangingrefrigerator(PER)isdevelopedbyusingfour-portthroughflow(TF)waverotors.Theoperatingprocedureandrefrigerationprincipleareinvestigatedbasedonone-dimensionalunsteadyflowtheory,andthefluidicbehaviorofPERisalsoanalyzedbymeansofcomputationalfluiddynamics(CFD).Abasiclimitationrelationwithmainstructuralparametersandoperatingparametersisdeduced.Mostmaininfluencingfactorsarestudiedbyexperiments.Theisentropicefficiencynowcanget68%.Theresultsshowthatwaverotorsusedforrefrigerationtechnologyarefeasibleandpromisinginpressuredgasrefrigerationcases.
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